85 entries under weaken topic. ×

6
sink(verb, stop, break, drop, go)
6
spoil(verb, break, dull, decline, hurt)
6
turn(verb, break, decline, hurt, damage)
6
wane(verb, stop, drop, end, cut)
5
dwindle(verb, stop, drop, end, cut)
5
flag(verb, decline, fail, lower, weakness)
5
go bad(verb, expression, idiom, stop, dull)
5
mortify(verb, decline, lessen, degenerate)
5
wear away(verb, expression, phrasal verb, stop, drop)
4
corrode(verb, decline, destroy, fail, blow)
4
lessen(verb, drop, cut, decline, reduce)
4
waste away(verb, expression, decline, separate)
4
wither(verb, stop, break, drop, end)
3
atrophy(verb, decline, blow, lessen)
3
go downhill(verb, expression, stop, end, decline)
3
hit the skids(verb, expression, idiom, decline, fail)
3
mildew(verb, decline, lessen, degenerate)
3
mold(verb, decline, lessen, degenerate)
3
putresce(verb, decline, lessen, degenerate)
3
suppurate(verb, decline, lessen, degenerate)
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APASmart Define. (2016). crumble thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/crumble/thesaurus/synonyms
ChicagoSmart Define. 2016. "crumble thesaurus" https://smartdefine.org/crumble/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, crumble thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/crumble/thesaurus/synonyms>.
MLASmart Define. "crumble thesaurus" 24 February 2016. Web. 29 September 2026. <https://smartdefine.org/crumble/thesaurus/synonyms>